<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>留言板</title>
</head>

<body>
    <div class="container">
        
        <div class="col-xs-3 col-sm-3 col-md-3 col-lg-3">
            <div class="thumbnail">
                <img data-src="#" alt="">
                <div class="caption">
                    <h3>留言板</h3>
                    <p>
                        ...
                    </p>
                    <p>
                        <a href="#" class="btn btn-primary">Action</a>
                        <a href="#" class="btn btn-default">Action</a>
                    </p>
                </div>
            </div>
        </div>
        
    </div>

</body>

</html>